Fix a sparse lock context warning.

Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com>
---
 drivers/platform/x86/dell/dell_rbu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/dell/dell_rbu.c b/drivers/platform/x86/dell/dell_rbu.c
index e30ca325938c..7b019fb72e86 100644
--- a/drivers/platform/x86/dell/dell_rbu.c
+++ b/drivers/platform/x86/dell/dell_rbu.c
@@ -91,7 +91,7 @@ static void init_packet_head(void)
 	rbu_data.imagesize = 0;
 }
 
-static int create_packet(void *data, size_t length)
+static int create_packet(void *data, size_t length) __must_hold(&rbu_data.lock)
 {
 	struct packet_data *newpacket;
 	int ordernum = 0;
-- 
2.47.1